UPDATE 2-Buffett needed no bankers for speedy deal

* Evercore, GS advised Burlington

* Banks may scoop up estimated fees of $50mln-55mln

* Buffett struck deal without M&A advisors - source

* Deal came together in just 9 days - source

* U.S. deal volume for November now surpasses October

(Adds background from source and background on deal)

By Megan Davies and Michael Erman

NEW YORK, Nov 3 (Reuters) - Billionaire Warren Buffett decided he did not need investment bankers when he negotiated his rapid takeover of Burlington Northern Santa Fe Corp (BNI.N: Quote, Profile, Research) even as the railroad was represented by veteran banker Roger Altman's boutique firm Evercore (EVR.N: Quote, Profile, Research) as well as Goldman Sachs (GS.N: Quote, Profile, Research).

The $26 billion deal pushes Evercore -- which advised Burlington alongside M&A juggernaut Goldman Sachs -- up the closely followed league tables.